Data Type in Programming

Here I am sharing some of my early experiences in Programming. When we write code for any application, generally we concentrate on Business Logic and different features available to meet the Business Logic. Whatever applications we are working on, we are ultimately playing with data .The placeholder for the Data is the variables/fields/properties, etc. When we are declaring data type for a variable, generally we don’t give much emphasis at that point. Here some points we need to take care